Providing Power connection to the EV Charging facility (3Nos) at Auto Shop and Adyar Out Gate inside IITM Premises

Amount

MV PANEL

Supply , Erection,Testing and commissioning of suitable size Floor/ Wall mounting cubical type following LT Main Panel board suitable for 415V 3ph 4 wire 50Hz AC supply system fabricated in a compartmentalized design from CRCA sheet steel of 2mm thick for frame works and cover with 3mm thick removable gland plate ,cleaning and finishing with 7 tank process for powder coating with siemens grey having extensible type TPN copper alloy busbar of suitable capacity as per the incomer ACB /MCCB/SDF ratings with DMC/SMC busbar suppotrs with short circuit withstand capacity of 31MVA / 1Second , bottom base channel of 75mmX 50mm X 5mm.

BUS BARS

Bus bars will be electrolytic copper , air insulated , R,Y,B, N(Black) PVC sleeved capable of carrying full load current for all the 3 phases and neutral continiously. The current density of copper shall be designed for 1.2A per sqmm. The bus chamber should have proper air ventilators.

EARTHING

25 x 3 mm copper earth bus painted in green colour should be provided all along the panel and connected to the main grid. Interconnectios should be taken to metering chamber, MCCB's, ACB's, FSU's etc sothat all current carrying components are effectively earthed.

ADDITIONAL SCOPE OF WORK

The scope of work includes minor civil works like breaking of concrete floors ,construction of masonary trench , and suitable MS 'П' type channels for the proposed panel as per the instruction from the Engineer in Charge.The rate should be inclusive of removing of existing LTUG cable terminatins up to 400 Sqmm from the panel or cable trench or excavated from earth . The cable should be re terminated ater completion of new panel erection works.Necessary Panel drawings , QAP and GTP have to be approved by the Engineer incharge before fabrication.

PANEL 1 (Auto shop)

Incomer

800A TPN MCCB 50kA with micro processor based trip units, front operated handle and with ON/OFF/TRIP indications-1 set

Outgoing

630A TPN MCCB 36kA with micro processor based trip units, front operated handle and with ON/OFF/TRIP indications- 2 Nos

800A copper bus bars for 3phases and neutral

The incomer should have 3 phase indication lamps with toggle switch-1set, microprocessor based digital multi function meter with communication port and the facility for active and reactive power measurements -1set with required CTs and control fuses etc.Necessary Spreaders / extended copper bus bars of suitable rating with required holes should be provided for the cable and bus bar terminations.The handle should be pad lockable type in both ON/OFF positions.

Panel 2 ( Adyar out Gate SS)

Supply installation testing and commissioning of 630A TPN MCCB 36kA in a floor mounted Kiosk type enclosure with micro processor based trip units ,front operated handle and with ON/OFF/TRIP indications-1 Set on a suitable angle iron frame work with necessary foundation etc including earth connections. The kiosk panel should have 3 phase indication lamps with toggle switch-1set, microprocessor based digital multi function meter with communication port and the facility for active and reactive power measurements -1set with required CTs and control fuses etc.Necessary Spreaders / extended copper bus bars of suitable rating with required holes should be provided for the cable and bus bar terminations.The handle should be pad lockable type in both ON/OFF positions.

Removing of existing MV Panels and 4 or 3.5 core aluminium armoured 6 sqmm to 240 sqmm LTUG cable -200mtrs( approx) including all the cables end terminations and handed over to the maintenance section in rolls as instructed by the Engineer -In Charge. The contractor should visit the site before quoting

Removing of existing 100kVA Transformer by removing the existing HT/ LTUG cables -80mtrs( approx) including all the cables end terminations , Earth flats etc and handed over to the maintenance section in rolls as instructed by the Engineer -In Charge. The contractor should visit the site before quoting

Shifting, Erection , Testing and commissioning of 500kVA 11kV/433V Distribution transformer on the existing bed with all accessories. The existing HTUG cable should be re- routed and re-connected at the HT side of the transformer. All pre-commissioning test to be done including filteration of oil , silica gel replacement etc befoe enerzise the transformer. The contractor should visit the site before quoting ( 500kVA 11kV/433V Distribution Transformer will be given by IITM)

Shifting Installation testing and commissioning of 800A MV Panel with suitable Channel on the existing trench with necessary grouting materials . The work and rate will be inclusive of re-termination of existing cables( 4 or 3.5 core aluminium armoured 6 sqmm to 240 sqmm LTUG cable -80mtrs( approx) ). The contractor should visit the site before quoting

LT UG CABLES AND TERMINATIONS

Supplying& Laying of following sizes PVC XLPE insulated alu. Conductor armored LTUG cable in a 40 mm to 100 mm dia HDPE DWC pipe in a trench of 50cm wide and 75cm depth including earth work excavation in all soils and sub soils and back filling, consolidated in a regular interval of 25cm thick rammed and complying with standard specification.

3.5c X 400 Sqmm Alu. AR. LTUG Cable

4C x 4 Sqmm Cu. AR. LTUG Cable

Supply, Laying, Testing and Commissioning of the following size PVC insulated and PVC sheathed/XLPE Power cable of 1.1KV grade Aluminium/Copper conductor armoured cables. Cables shall be laying on the existing cable trenches,cable tray,cable duct,and on wall/ceiling indoor/outdoor with suitable clamps & necessary fixing accessories etc. as required.

4 runs of 240 sqmm copper flexible cable

Supplying and making end termination for following sizes aluminium/copper AR.LTUG cable using suitable compression gland with required Aluminium/ copper ferrules/sockets and other jointing materials

3.5c X 400 Sqmm Alu. AR. LTUG Cable

4 runs of 240 sqmm copper flexible cable

4C x 4 Sqmm Cu. AR. LTUG Cable

EARTHING

Earthing with copper earth plate 600x600x3mmthick including acessories and providing masonary enclosure with cover plate having locking arrangement and watering pipe of 2.7m long etc with charcoal / coke and salt as required.

Supplying and laying of following size earth flats at 0.50 mt below the earth including soldering/welding as required

100x6 mm GI Strip

25 x 5mm GI strip

Single run of 95 Sqmm Copper cable in a suitable size PVC pipe

Limra Electricals

Delhi Electrical Construction

POWERPOINT